Car-door mechanism.



W. G. CORY.

CAR DOOR MECHANISM.

APPLICATION FILED OCT. 29, IBIS.

Patented Nov. 21, 1916.

2 SHEETSSHEET I.

W. G. CORY.

CAR DOOR MECHANISM.

APPLICATION FILED OCT. 29. I913.

Patented Nov. 21, 1916.

2 SHEETS-SHEET 2- inairnn sraras PATENT oEEioE WILBUR G. OORY, OF NEWYORK, N. Y., ASSIGNOR To oseoon BRADLEY can COMPANY, or WORCESTER,MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

CAR-DOOR MECHANISM.

Application filed October 29, 1913.

To all whom it may concern: 7

Be it known that I, WILBUR G. CORY, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a new and useful Car-Door Mechanism, of which thefollowing is a specification.

This invention relates to car door mechanism and particularly tomechanism for operating the double end doors or so-called twin bulkheaddoors on passenger cars.

It is one of the objects of my invention to provide a construction bywhich each one of a pair of double end doors may be automatically closedindependently of the other door.

Another object of my invention is to provide means for independentlylocking each of a pair of double end doors in either open or closedposition.

A third object of my invention is to pro vide means for yieldinglyholding such a door in closed position in combination with means topositively lock the door in either open or closed position.

For the accomplishment of the objects above referred to, the inventioncomprises the features and combinations of parts hereinafter describedand particularly pointed out in the appended claims. 7

A preferred form of my invention is shown in the drawings in whichFigure 1 is a perspective view showing certain parts of a car frameworkand a pair of double end doors mounted thereon: Fig. 2 is a sideelevation showing the automatic supporting mechanism: Fig. 3 is a detailsectional view on the line 33 in Fig. 2: Fig. 4: is a similar viewshowing the parts in a different position: Figs. 5 and 6 are detailsshowing the locking mechanism in operative and inoperative positions:and Fig. 7 is an enlarged detail showing the yielding means for securingone of the doors in closed position.

Referring to Fig. 1, the doors and supporting structure embodying myinvention are shown in connection with the framework of a passenger carof ordinary construction. The doors l0 and 11 are mounted upon rollers12 shown in dotted lines in Fig. 2 and arranged to travel upon inclinedoverhead tracks 13. These tracks are pivotally secured to the supportingframework by the Specification of Letters Patent.

Patented Nov. 21, 1916.

Serial No. 798,141.

plates 11 and are provided with vertical adusting bolts 15 by which thedepression of their inner ends 16 below the bracket 17 may be regulated.From this construction it may be seen that the doors l0 and 11, whenfree to move, will automatically travel toward the lower ends of thetracks 13 and will thus tend to assume a closed position- Mounted uponthe side framework 18 of the door casing, as shown in Figs. 3 to6 is alocking member or latch 19 which is pivotally secured to a plate 20.This plate may be fastened to the framework 18 in any desired manner, asby screws 21 and is provided with a pin 22 which acts to support thelocking member 19 in operative position, as shown in Fig. 5, 01 ininoperative position, as shown in Fig. 6.

The doors 10 and 11 are each provided with a recess 23 in which may besecured a metallic lining member or socket 2 1. The socket 2a is solocated in the door that when the door is closed the socket will bev inposition to receive the locking member 19, as is shown in Fig. 3.l/Vhenv the door is fully open the locking member may be moved to aposition in front of the door, thus serving to lock the door in eitherclosed or open position. WVhen the locking member is moved to theposition shown in Fig. 6, the door may be freely moved from anyposition.

Referring to Fig. 2, there is mounted upon the framework of the carbetween the ends of the overhead tracks 13 a block 25 to which issecured a leaf s ring 26 having the outline shown in Fig. 'l The door 11has secured to the upper corner thereof a projecting lug 27 adapted toraise the spring 26 as it passes thereunder and by means of this lug thespring 26 will hold the door 11 yieldingly in closed position. A secondspring 26 and lug 27 may be provided for the door 10 if so desired.

By the provision of both the positive looking member 19 and the yieldinglocking member 26, all conditions arising in passenger car operation maybe satisfactorily met.

The door maybe positively locked in open position by the member 19 andit may be positively locked in closed position by the same member. If itseems desirable to leave the door under the control of the enteringpassengers the locking member 19 may be swung to inoperative position,as shown in Fig. 6, leaving the door under the control 7 of the springmember 26. This member will yield when the passengers open the door, butwill prevent banging and possible breakage of the door, arising frommovements of the car. At the same time the door is free to moveautomatically to closed position under the influence of gravity.

I am aware that many modifications of my device may be made by thoseskilled in the art without departing from the scope of my invention andI do not Wish to be limited to the precise disclosure herein shown, but

What I do claim is 1. In a car, in combination, a door casing, a doormovable by gravity to closed position in said casing, means including aspring for yieldingly holding said door in closed position withoutpositively locking the same, and a single additional device effeclockingdevice mounted on the door casing efiective to positivelv lock said doorin either open or closed position, said device including a pivotedmember movable into operative and inoperative positions, and

means being provided for supporting said member in either of saidpositions.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses.

WIL BUR G. CORY. V

IVit-nesses HAROLD R. CURRIEn, Howano G. SAUNDERS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

